The first vertebrate animal appeared in which of the following geological ages? A) Paleozoic era B) Mesozoic era C) Ordovician period D) Cretaceous period E) Mississippian epoch F) Paleocene epoch […]
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CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
The Essential Guide to Organisms That Coexisted with Dinosaurs: Authentic Mesozoic Companions for Accurate Dinosaur Movies
Any movie that features dinosaurs should also have which of the following combinations of geological age- appropriate organisms? Choose the correct combination. (1) Humans, angiosperms and gymnosperms, birds, (2) Early […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Matching Major Evolutionary Events to Geological Eras: Plants, Mammals, and the Breakup of Pangaea
The following geological eras mark the advent of important events in the history of earth – origin of terrestrial plants, origin of mammals and break up of the land mass […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Darwin’s “Abominable Mystery”: The Origin and Diversification of Angiosperms
The term “abominable mystery” was used by Darwin in the context of origin and diversification of (1) angiosperms (2) microorganisms (3) beetles (4) birds Introduction Charles Darwin, the father of […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
The Origin and Diversification of Angiosperms: The Cretaceous Period
The origin and diversification of Angiosperms was during which geological period? (1) Permian (2) Triassic (3) Jurassic (4) Cretaceous INTRODUCTION Angiosperms, or flowering plants, are the most diverse and ecologically […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Endosymbiotic Hypothesis: Which Statement About the Origin of Eukaryotes Is Incorrect?
Which one of the following statements regarding ‘Endosymbiotic hypothesis of origin of eukaryotes’ is INCORRECT? (1) Mitochondria arose from an α-proteobacterium and plastids arose from cyanobacteria. (2) The event of […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
When Did Mammals First Appear? The Triassic Period and the Dawn of Mammalian Evolution
Which of the following geographical periods is characterized by the first appearance of mammals? (1) Tertiary (2) Cretaceous (3) Permian (4) Triassic Introduction The appearance of mammals is a pivotal […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Chronological Order of Key Events in the History of Life: From Molecules to Cells
Among the following events in history of life a. prokaryotic cell b. eukaryotic cell c. natural selection d. organic molecules e. self replicating molecule Which is the correct chronological order? […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Where Did Life Originate? Recent Studies on Archaea Point to Deep Hydrothermal Vents
Recent studies on Archaea suggest that life could haveoriginated (1) extra terrestrially and seeded through meteoriteimpacts. (2) in shallow coastal areas. (3) in deep hydrothermal vents. (4) in hot, terrestrial […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
The Permian–Triassic Extinction: When Over 95% of Marine Species Disappeared
During which of the following major mass extinction events, over 95% of the marine species disappeared from the planet Earth? (1) Ordovician (2) Devonian (3) Permian (4) Triassic Introduction Earth’s […]
